Sheet-piling



E. TROYE. SHEET PILING. APPLICATION FILED MAY 13, I918.

Patented June 1,

2 SHE ETSSHEET I.

V E. TROYE.

SHEET FILING.

APPLICATION FILED MAY 13. 1918.

Patented June 1, 1920.

2 SHEETS-SHEET 2 EINAR TBOYE, OF CHRISTIANIA, NORWAY.

SHEET-FILING.

. T all whom, it may concern:

Be it known that I, EINAR TROYE, a subject of the King of Norway,residing at Christiania, in the Kingdom of Norway,

have invented certain new and useful Improvements in Sheet-Piling; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theartto which it. appertains to make and use the same, reference being hadto the accompanying drawings, and to letters or figures ofreferencemarked thereon, which form a part of this specification. I 1 Myinvention relates to steel sheet piling and more particularly to thatkind of such piling in which the interlocking members on both edges ofthe web are symmetric and consist of a groove between two ribs.

The principal object of my invention is to provide a sheet piling ofthis class, the

interlocking members of which may be pos1-.

tively and rigidly interlocked against relative or angular movementafter assemblage, and which may at will be interlocked at differentangles or in different relative positions.

The interlocking connection being rigid the integral parts of the samemay be given a very strong cross section without departing from theeconomy of the piling section, the moment of resistance of the piling asa whole being largely dependent on the great Accordmass of theinterlocking portions. ing to this system there may, even when pilingsections with straight webs are used,

- be provided piling combinations not only of great or varied moment ofresistance but also of corner connections, and pillars of square orother sections without needing any auxiliary constructions and withoutany riveting.

Referring to the accompanying drawings illustrating various preferredforms of my invention Figure 1 is an end view of three interlocked sheetpiling sections, Fig. 1 is a detail view of two pile sections showingthe intel-locking members connected in a manner the reverse of thatshown in Fig. 1, and Fig. 52 is an end view of a number of interlockedsections of a modified type. Fig. 3 is a detail of another type, Figs. 4and 5 are corresponding end views illustrating my sheet piling sectionsinterlocked by means of special auxiliary sections. Fig. 6 is a diagramof two pile sections and Figs. 7 and 8 illus- Specification of LettersPatent. 7

-;w th the web 9 which portion of a sheet Patented Junei, 1920.

Application filed May 13, 1918. serial No. 234,312.

trate further modifications of the form of the interlocking portions.

InFig. 1 the piling section-l having a:

straight web portion 2 is provided at both edges of said web witl;symmetric interlocking members, each consisting of two ribs 3 and 4,each of which thinner inner portion or neck and a thicker outer portionor head. Said ribs or the outer parts of said ribs are of similar crossare provided with a.

section, and form between them a groove 5,

of the same or essentially the same cross section as said ribs, so thateach rib may be inserted in the grooves, and insure a rigid interlockwhen assembled endwise with eitherof the substantially duplicate ribs 3and 4 of the adjoining pilingsection. Fig. 1 shows the rib 4 in thegroove 5, and Fig. 1

. shows the rib'3 in said groove.

In the special form of section shown in Figs. 1 and 1 the median axis ofthe groove 5 is placed at an angle of 45 to the axis of the ,web 2, thusenabling thev sections to be interlocked rigidly either along a straightaxis as shown in full lines or at right angles as shown in dotted lines.As also shown in dotted lines there may eventuallybe arrangedreinforcement ribs or beads 6 along 7 the outer sides of the rib necksto assistin taking up the strain on these necks owing to side pressureor the like pressure on the sections.

Fig. 2 illustrates a sheet piling composed of various sections accordingtomy invention. In the section-7 the interlocking ribs 3 and 4 areplaced symmetrical to the straight web of the section, thus forming withthe interlocked sections 1, 1 (accord-n ing to Fig. 1) havinginterlocking grooves 5, 5 at an angle of 45 to their respective webs, arigid interlock at an angle of 135.

The section 8 has grooves 5 the median plans of which are parallel tobut out of line is slightly arched. In Fig. 3 is illustratedtheinterlocking piling section,-"tormed by doubling up a comparatively thinweb portion so as to form ribs 11., 11 and a groove 12 of a formcorresponding to that of the piling sections of the foregoing figures.

In Fig. 1 is shown a ma-nner in which the piling walls according to thisinvention may be interconnected by aid of auxiliary piling sections 12with ribs 13 forming a rigid interlock with the corresponding effectiveanchorage of a piling wall, dam

or the like may be effected-or it may be used for cofferdams.

Fig. 6 is a diagram of two piling sections 15, 16 of U- or archedsection with interlocking means according to my invention, forming incombination with auxiliary sections 17, 18 a piling wall reinforced bypillars or posts or a kind of cofferdam.

Figs. 7 and 8 show modified forms ofthe.

interlocking ribs especially adapted to withstand heavy longitudinalstrains. In the form of ribs shown in Fig. 1 there will be a certainamount of wedge action between the sides of the rounded interlockingribs when the piling is exposed'to heavy longitudinal strains but whenthe ribs are, given the square shape shown in Fig. 7 or the spade shapeshown'in Fig. 8 the 1ongitudinal strain will be taken up by the straightinterlocking faces 19 of the ribs.

It is a special feature in the piling according to my invention that.it'enables the form- .ing of closed rigid rectangular or squareconstructions without the use of rivetin 'or other auxiliary connectingmeans. his kind of piling is therefore also suitable for variousbuilding purposes, as roof constructions, stairs and the like.

It will be evident that my invention may be used in connection withpiling section webs-of any convenient section, as straight, curved,U-shaped, Z-shaped or undulated sectionsthe shape of the web and thedimensions of the interlocking ribs being suitable for the specialpurposes for which the piling is intended. By using interlocking rlbs ofa strong typethe resisting momentum of the piling may be correspondinglyincreased.

:It is also-evident that the cross sectional form of the rib heads isnot limited to the cross sections shown in the'drawings as eventriangular, oval and other sections of the rib heads may be used.

I claim; v 1. A sheet pile consisting of a'web portion havinginterlocking members compris ing two ribs of substantially thesameconsection said ribs and adjacent piles at an angle to one another.

\ 2. In sheet piling a section consisting of a web portion having onboth edges symmetric interlocking members comprising two ribs, said ribshaving outer thicker portions or heads and inner thinner portions ornecks, said ribs forming between them a groove of the same orsubstantially the same cross section as each of said ribs or heads,

said groove being adapted to' form a rigid or substantially rigidinterlock with either of the two interlocking ribs or heads in theadjoining piling section and'a reinforced portion on the outer side ofthe neck portion of one of said ribs and forming an abutment for thehead of the other rib.

3. In sheet piling a section consisting of a web portion having on bothedges symmetric interlocking members comprising two ribs, said ribshaving outer thick portions or heads and inner thinner portions ornecks, said ribs forming between them a groove of the same orsubstantially the same cross sec- I tion as each of said ribs 01 heads,said groove being adapted to form a rigid or substantially rigidinterlock with either of the two interlocking ribs or heads in theadjoining piling section and a reinforced portion on the outer side ofthe neck portion on both of the said ribs forming abutments for eitherhead.

4. In sheet'piling a-section consisting of a web portion having on bothedges symmetric interlocking members comprising two ribs, said ribshaving outer thicker portions or heads, and inner thinner portions ornecks, said ribs forming between them a groove of the sameor-substantially the same cross section as each of said ribs or heads,said groove interlock with either of the two interlocking ribs or headsin the adjoining piling grooves being formed by doubling up the edges ofthe web portion of the section. i 1

In testimony that I claim the foregoing as my invention, I have signedmy name in presence of two subscribing witnesses. I EINAR TROYE.Witnesses: M. W. KAHRS,

C. NORMAN.

'- being adapted to form a substantially rigid I

